Term
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Definition
| Long barrel, high power, range and accuracy. |
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Term
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Definition
| Barrel not rifled, fire "shot" or slug, shells measured in gauge. |
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Term
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Definition
| Easy to conceal, not as accurate, limited ammo. |
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Term
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Definition
| Spinning grooves to improve accuracy. |
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Term
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Definition
| Container and loader of bullets. |
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Term
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Definition
| Activator to ignite and fire the bullet. |
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Term
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Definition
| Grooves in a barrel create grooves on the bullet as it travels down it. |
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Term
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Definition
| Piece of bullet casing that ignites the propellant. |
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Term
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Definition
| Material inside of bullet casing that ignites and launches bullet. |
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Term
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Definition
| Remnants of gun powder that come out with the bullet. |
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Term
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Definition
1. Virginia Tech- 4/16/07
K.32 I.15 S.1
2. Newton, CT, Sandy Hook- 12/14/12
K.27 I.? S.1
3. Austin, TX- 8/1/96
K.14 I.30 S.2 |
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Term
| What can ballistics tell us? |
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Definition
-Type of firearm
-Bullet Caliber
-# of bullets fired
-Location of shooter
-Angle of impact
-Firearm in previous crime |
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Term
| What about ballistics can be classified as class evidence? |
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Definition
- Bullet type
-Caliber
-Weight
-Lands and grooves
-Rifling
-Cartridge case
-Head stamp |
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Term
| What about ballistics can be classified as individual evidence? |
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Definition
-Straie
-Firing pin
-Breech marks
-Extractor marks
-Ejector marks
-Chamber marks
-Finger Prints |
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Term
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Definition
Diameter of bullet & inside of barrel
Measured in inches
9mm = .38cal |
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Term
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Definition
Diameter of shell and inside barrel
10, 12, 16, 20 gauge |
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Term
| What test is used to detect GSR? |
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Definition
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Term
| What does the Greiss test react to and what colors does it prevail? |
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Definition
Nitrates turn orange
Lead turns purple |
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Term
| What are the parts of a headstamp that are important? |
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Definition
| Shape, center or rimfire, manufacturer |
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Term
| What are the types of bullets and their uses? |
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Definition
Full Metal Jacket
Jacketed Soft Point
Hollow Point (increased bodily harm)
Lead Roundnose
Semi-Wadcutter
Wadcutter (target practice) |
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Term
| 2 ways of calculating angles of impact |
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Definition
Sin-1(Minor/Major)
Stick rod into hole and use protractor to find angle |
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Term
| How does one determine the longitudinal distance(B) of a shooter knowing the angle of impact of the bullet(X) and the latitudinal distance(A)? |
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Definition
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